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How to test and install pipeline fully welded Ball Valve
Fully welded Ball Valve for pipelines should undergo a pressure test before installation to ensure the tightness and safety of the valve itself. 1. Fully welded Ball Valve test (1) Strength test: The strength test uses water as the medium; high-pressure caps are welded on the sleeves on both sides of the valve. After opening the valve to the 45°C position, inject wa
How to protect Ball Valve from freezing
If you select and install a suitable Ball Valve, as long as steam passes through it, there will be no freezing problem. But if the steam is cut off, the steam condensate will form a vacuum in the heat exchanger or accompanying pipe. This prevents condensation from draining freely from the system before freezing occurs. Therefore, install a vacuum breaker between the equipment being discharged and the Ball Valve. If gravity discharge is not used from the Ball Valve to the return pipe, the Ball Valve and discharge line should be manually discharged or automatically discharged using a disch
Factors that should be paid attention to when selecting Ball Valve
The selection of Ball Valve should first follow the four principles of safety, reliability, applicability, and economy, and secondly, based on the six aspects of on-site working conditions. 1. Choose according to the length of continuous working time: normally closed, normally open, or continuously powered on ①If the opening time is short or the opening and closing time is not l
How Ball Valve drive industrial transformation
As a new type of valve in recent years, Ball Valve have defeated some domestic valves in the fiercely competitive domestic market by virtue of some of their unique structural characteristics and quickly seized market opportunities. However, with the development of industry in the past two years, especially in 2016, my country has paid special attention to the transformation of traditional industrialization. So at this time, can the manufacturers of forged steel high-pressure Ball Valve, as traditional valves, drive the transformation of the industry?
The development direction of Ball Valve
Intelligence and standardization. The intelligence and standardization of Ball Valve have been put on the agenda. Intelligentization mainly uses Universal Valve positioner. Intelligence is manifested in the following aspects: ① Intelligent functions such as self-diagnosis of Ball Valve and remote communication of operating status make the management of Ball Valve convenient and fault diagn
Operation, use and advantages of Ball Valve
1. Emergency sealing grease injection rescue: The valve seat seal unexpectedly fails due to foreign matter in the Ball Valve medium or fire. The grease injection valve provides a quick connection with the grease injection gun. The imported pump injects sealing grease into the valve seat sealing part conveniently and quickly. , alleviate leakage. 2. Reliable valve stem sealing and low operati
Main structural features and operation of Ball Valve
The Ball Valve adopts the design of fixed valve core (shaft-supported type) and movable sealing seat on the upper and lower valve stems. The job is more stable. It has automatic compensation function, large shearing force and self-cleaning function when rotating without gap between the two-way sealing valve seats. It is especially suitable for switching on and off imperial fibers, suspensions and viscous media with tiny solid particles. Ball Valve products can be widely used in automated control systems in industrial sectors such as papermaking, petrochemicals, chemicals, metallurgy, ele
The difference between soft seal and hard seal of Ball Valve
There are differences in the use of soft and hard seals in Ball Valve, mainly in terms of structure, and the manufacturing standards of valves vary. 1. Structural mechanism The hard seal of the Ball Valve is a seal between metal and metal. The sealing ball and valve seat are both metal. The processing accuracy and technology are relatively difficult, and t
The Ball Valve has the advantages of simple and compact structure, reasonable design, light material saving, reliable sealing, light and flexible operation, small size, smooth channel, small flow resistance, light weight, easy installation and easy disassembly, etc. It completely solves the problem of ordinary gate valves, flat gate valves, Globe valves, regulating valves, butterfly valves, Ball Valve and other valves have difficult problems such as heavy weight, large flow resistance, large area, and difficulty in installation. They can replace general cut-off valves and regulating valv
The Ball Valve is an automatic pressure relief protection device opened by inlet static pressure. It is one of the most important safety accessories for pressure vessels. Its function is: when the pressure in the container exceeds a certain value, it will automatically open based on the pressure of the medium itself. The valve quickly discharges a certain amount of media. When the pressure in the container drops to the allowable value, the valve automatically closes, so that the pressure in the container is always lower than the upper limit of the allowable pressure, automatically preven
The Ball Valve manufacturing industry will show good development prospects
With the development of various industries, the varieties and specifications of Ball Valve are also increasing, and Ball Valve are used in more and more industries, such as petrochemical industry, oil refining industry, nuclear power industry, thermal power industry, etc. They are widely used. Analysts pointed out that the market size of the Ball Valve industry in 2013 has
Common sense of Ball Valve selection and its structural principles
1. Applicability The fluid in the pipeline must be consistent with the medium calibrated in the selected Ball Valve series model. The temperature of the fluid must be less than the calibrated temperature of the selected Ball Valve. The allowable liquid viscosity of the Ball Valve is generally below 20CST. If it is greater than 20CST, it should be noted. Working pressure difference, when the high pressure difference in the pipeline is less than 0.04MPa, direct-acting and step-by-step direct-acting types such as ZS, 2W, ZQDF, ZCM series should be used; when the low working pressure
Precautions for correct installation of Ball Valve
1. Read the product manual carefully before installation, check whether the product meets the usage requirements, remember the installation points, and make preparations. 2. Pay attention to the cleanliness of the medium. If the medium is mixed with dirt, impurities, etc. that will hinder the normal operation of the Ball Valve, a filter valve with a mesh of ≥60 mesh should be installed in the pipeline
Precautions for using Ball Valve
1. The Universal Valve can be installed on the pipeline at any position in the space. 2. The installation position of the Ball Valve should ensure the convenience of use, maintenance and replacement. 3. When installing the Universal Valve, the direction of flow of the pipeline medium can be ignored, that is, bidirectional flow is allowed. 4. The Ball Valve should be stored in a
Ball Valve installation and maintenance
Ball Valve Fluoroplastic or plastic-lined corrosion-resistant Ball Valve and pipeline accessories, due to their inherent special properties, have the following characteristics in terms of product installation, maintenance and upkeep: 1. The Ball Valve or pipe fitting flange cover cannot be disassembled at will. Unless it is prepared to be connected to the pipeline, the PTFE flange su
Several details that should be paid attention to when installing the Ball Valve
The self-operated pressure steam Universal Valve is a type of self-operated Universal Valve. Because it does not require other external energy sources such as power and air sources, it is driven only by the energy of the medium itself. It is energy-saving, environmentally friendly, and easy to use. It can be set after installation. The pressure value can be put into automatic operation, so it is increasingly used in situations where the control accuracy is not high and there is a lack of power supply and air source.
Structural form and installation points of Throttle Valve
The Throttle Valve uses power to drive an electric actuator and then drive the valve to throttle. It is an important execution unit instrument in industrial automation process control. As the degree of automation in the industrial field becomes higher and higher, it is being increasingly used in various industrial production fields. The Throttle Valve has obvious advantages: the electric single-seat Universal Valve is energy-saving, environmentally friendly, and the installation is faster and more convenient.
Throttle Valve performance types and working principles
Throttle Valve, also called self-operated control valve, is a new type of Universal Valve. As the name suggests, it does not require external power supply and secondary instruments. It relies on the pressure and temperature of the medium flowing through the valve itself as energy to drive the valve to work automatically. The feedback signal (pressure, pressure difference, temperature) at the output end is transmitted to the actuator through the signal tube, which drives the valve disc to change the opening of the valve to achieve the purpose of adjusting pressure, flow, and temperature.
Precautions when installing and using Throttle Valve
In the field of industrial processing, people usually use Throttle Valve control instruments. The application of these instrument devices is very important. Control instruments can ensure the accuracy of production and processing, so workers will use the control instruments in their daily work. as one of the important contents. The Throttle Valve is a control instrument for industrial processing processes. It is also a frequently used equipment in these production fields. When the equipment is working, it can provide power by compressing gas. The working principle of the equipment is ver
Causes and Treatments of Throttle Valve Vibration
The vibration of the Throttle Valve is generally divided into two states. One is the overall vibration of the Throttle Valve, that is, the entire Throttle Valve vibrates frequently on the pipe or base. The other is the vibration of the Throttle Valve core, which can be seen from the frequent movement of the valve stem up and down. 1. Overal
How to choose the appropriate diameter of the Globe Valve
The selection and determination of the caliber is mainly based on the flow capacity of the valve, that is, Cv. When designing and selecting instruments for various projects, Cv calculations must be performed for Universal Valve and Universal Valve design instructions must be provided. From calculating the Cv of the Globe Valve to determining the valve diameter, the following steps are generally required: 1.
How does the Globe Valve handwheel work?
The function of the Globe Valve is relatively large. The Universal Valve is used in conjunction with the Globe Valve. Its main uses are as follows: 1. When the air source signal or electrical signal fails, or when the main components of the actuator, such as diaphragms, springs, seals, transmission parts, etc., are damaged, automatic operation must be changed to manual operation. A Universal Valve can b
Choose related accessories for Globe Valve
The Globe Valve is one of the important links in the automated control process instrumentation. The correct selection is crucial to the normal operation of the system. In addition to the pressure, temperature, diameter, material and regulating valve structure and other common parameters, the selection of the Globe Valve needs to be implemented. , also pay attention to the relevant accessories. The main accessories of the Globe Valve include: valve positioner, solenoid valve, valve position feedback, air filter pressure reducing valve, position retaining valve, pneumatic relay, etc. The s
The structure and function of Globe Valve
With the needs of industrial development, the Globe Valve appeared later than the pneumatic control valve, but its scope of use is becoming more and more extensive. Because it does not require an air source, it is more convenient to install and use. It can work as long as the power supply and control signal are connected. The following editor will introduce the structure and function of the Globe Valve.
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